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Nanocomposite TiAlBN Coatings As A Corrosion Protection Layer For AZ91 Mg Alloy Substrate In NaCl

Magnesium alloys create increasing interest in structural application where weight reduction is vast concern. However,one of magnesium drawback in various applications is low corrosion resistance.In general,a hard coating can be applied on metal to combat such a problem.AlN and TiN coatings are most...

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Main Authors: Zainal Abidin, Muhammad Zaimi, Mohd Rosli, Zulkifli, Mohamad Juoi, Jariah, Mahamud, Zainab
Format: Article
Language:English
Published: Trans Tech Publications 2015
Subjects:
T Technology (General)
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.utem.edu.my/id/eprint/21273/2/MSF.819.109.pdf
http://eprints.utem.edu.my/id/eprint/21273/
https://www.scientific.net/MSF.819.109
https://doi.org/10.4028/www.scientific.net/MSF.819.109
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spelling my.utem.eprints.212732021-07-15T18:42:24Z http://eprints.utem.edu.my/id/eprint/21273/ Nanocomposite TiAlBN Coatings As A Corrosion Protection Layer For AZ91 Mg Alloy Substrate In NaCl Zainal Abidin, Muhammad Zaimi Mohd Rosli, Zulkifli Mohamad Juoi, Jariah Mahamud, Zainab T Technology (General) TA Engineering (General). Civil engineering (General) Magnesium alloys create increasing interest in structural application where weight reduction is vast concern. However,one of magnesium drawback in various applications is low corrosion resistance.In general,a hard coating can be applied on metal to combat such a problem.AlN and TiN coatings are most widely utilized in manufacturing area i.e for structural application due to its high hardness, high chemical stability,and excellent adhesion to substrates.Most recent,TiAlBN coating catch many attentions due to its superior properties than other most studied hard coating.The incorporation of aluminium in the cubic face centered TiN structure on Ti sites leads to deformation and strengthening of the crystal structure of the coating together.Moreover,incorporation of BN in this coating should improve and enhanced the corrosion resistance of Mg alloy.Therefore,in this study,TiAlBN coating have been chosen to be deposited on Mg alloy using reactive magnetron sputtering together with AlN and TiN coatings for comparison study.During depositions, target power,working pressure and bias voltage are optimized for each coating.Analysis on the effect of AlN, TiN and TiAlBN coatings on Mg alloy substrate include thickness measurement and microstructure by scanning electron microscope (SEM).Coatings phase were analysed using glancing angle X-ray diffraction analysis (GAXRD) and corrosion properties were evaluated using potentiodynamic polarization in NaCl solution.TiAlBN shows better performance of corrosion protection with the least corrosion rate (penetration rate = 0.20 mm/yr;mass loss rate=0.97g/m2d) in sodium chloride (NaCl) solution although having the lowest coating thickness (412 nm). Trans Tech Publications 2015-06 Article PeerReviewed text en http://eprints.utem.edu.my/id/eprint/21273/2/MSF.819.109.pdf Zainal Abidin, Muhammad Zaimi and Mohd Rosli, Zulkifli and Mohamad Juoi, Jariah and Mahamud, Zainab (2015) Nanocomposite TiAlBN Coatings As A Corrosion Protection Layer For AZ91 Mg Alloy Substrate In NaCl. Materials Science Forum, 819. pp. 109-114. ISSN 1662-9752 https://www.scientific.net/MSF.819.109 https://doi.org/10.4028/www.scientific.net/MSF.819.109
institution Universiti Teknikal Malaysia Melaka
building UTEM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknikal Malaysia Melaka
content_source UTEM Institutional Repository
url_provider http://eprints.utem.edu.my/
language English
topic T Technology (General)
TA Engineering (General). Civil engineering (General)
spellingShingle T Technology (General)
TA Engineering (General). Civil engineering (General)
Zainal Abidin, Muhammad Zaimi
Mohd Rosli, Zulkifli
Mohamad Juoi, Jariah
Mahamud, Zainab
Nanocomposite TiAlBN Coatings As A Corrosion Protection Layer For AZ91 Mg Alloy Substrate In NaCl
description Magnesium alloys create increasing interest in structural application where weight reduction is vast concern. However,one of magnesium drawback in various applications is low corrosion resistance.In general,a hard coating can be applied on metal to combat such a problem.AlN and TiN coatings are most widely utilized in manufacturing area i.e for structural application due to its high hardness, high chemical stability,and excellent adhesion to substrates.Most recent,TiAlBN coating catch many attentions due to its superior properties than other most studied hard coating.The incorporation of aluminium in the cubic face centered TiN structure on Ti sites leads to deformation and strengthening of the crystal structure of the coating together.Moreover,incorporation of BN in this coating should improve and enhanced the corrosion resistance of Mg alloy.Therefore,in this study,TiAlBN coating have been chosen to be deposited on Mg alloy using reactive magnetron sputtering together with AlN and TiN coatings for comparison study.During depositions, target power,working pressure and bias voltage are optimized for each coating.Analysis on the effect of AlN, TiN and TiAlBN coatings on Mg alloy substrate include thickness measurement and microstructure by scanning electron microscope (SEM).Coatings phase were analysed using glancing angle X-ray diffraction analysis (GAXRD) and corrosion properties were evaluated using potentiodynamic polarization in NaCl solution.TiAlBN shows better performance of corrosion protection with the least corrosion rate (penetration rate = 0.20 mm/yr;mass loss rate=0.97g/m2d) in sodium chloride (NaCl) solution although having the lowest coating thickness (412 nm).
format Article
author Zainal Abidin, Muhammad Zaimi
Mohd Rosli, Zulkifli
Mohamad Juoi, Jariah
Mahamud, Zainab
author_facet Zainal Abidin, Muhammad Zaimi
Mohd Rosli, Zulkifli
Mohamad Juoi, Jariah
Mahamud, Zainab
author_sort Zainal Abidin, Muhammad Zaimi
title Nanocomposite TiAlBN Coatings As A Corrosion Protection Layer For AZ91 Mg Alloy Substrate In NaCl
title_short Nanocomposite TiAlBN Coatings As A Corrosion Protection Layer For AZ91 Mg Alloy Substrate In NaCl
title_full Nanocomposite TiAlBN Coatings As A Corrosion Protection Layer For AZ91 Mg Alloy Substrate In NaCl
title_fullStr Nanocomposite TiAlBN Coatings As A Corrosion Protection Layer For AZ91 Mg Alloy Substrate In NaCl
title_full_unstemmed Nanocomposite TiAlBN Coatings As A Corrosion Protection Layer For AZ91 Mg Alloy Substrate In NaCl
title_sort nanocomposite tialbn coatings as a corrosion protection layer for az91 mg alloy substrate in nacl
publisher Trans Tech Publications
publishDate 2015
url http://eprints.utem.edu.my/id/eprint/21273/2/MSF.819.109.pdf
http://eprints.utem.edu.my/id/eprint/21273/
https://www.scientific.net/MSF.819.109
https://doi.org/10.4028/www.scientific.net/MSF.819.109
_version_ 1706960975184265216
score 13.211869

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